To find the angle that a line joining two points makes with the positive $x$-axis, we use the slope of the line and the relationship between slope and angle.

Formula:

The slope of a line is given by: $m = \frac{y_2 - y_1}{x_2 - x_1}$ The angle $\theta$ that the line makes with the positive $x$-axis is then calculated using: $\theta = \tan^{-1}(m)$ where $\theta$ is measured in radians or degrees. Ensure the angle is in the correct quadrant based on the signs of $(x_2 - x_1)$ and $(y_2 - y_1)$.

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Steps:

1. Compute the slope $m$ using the coordinates of the two points.
2. Use the inverse tangent function to find the angle $\theta$ in radians or degrees.
3. Adjust $\theta$ to ensure it is in the correct quadrant.
4. Round $\theta$ to two decimal places.

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Example Input:

Please provide the two points $(x_1, y_1)$ and $(x_2, y_2)$, and I will calculate the angle for you.